RAT-TAT Meaning of RAT-TAT in English transcription, транскрипция: [ ˈrætˈtæt ]n. (also rat-tat-tat, ratatat, rat-a-tat) a rapping sound, esp. of a knocker. [imit.] English main colloquial, spoken dictionary. Английский основной разговорный словарь. 2012